/* Copyright  2009
   @Author
   Richard Changde Yin            e-mail yinchangde@hotmail.com

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
   
/**
 *@filename:  bin_string.h
 */ 
#ifndef COLLAPSAR_ITEM_BIN_STRING_H
#define COLLAPSAR_ITEM_BIN_STRING_H

#include <item/hex_string.h>

class Item_bin_string: public Item_hex_string
{
public:
  Item_bin_string(const char *str,uint32_t str_length);
};


class Item_result_field :public Item    /* Item with result field */
{
public:
  Field *result_field;                          /* Save result here */
  Item_result_field() :result_field(0) {}       /* result_field is set to 0*/
  // Constructor used for Item_sum/Item_cond_and/or (see Item comment)
  Item_result_field(Session *session, Item_result_field *item):
    Item(session, item), result_field(item->result_field)
  {}
  ~Item_result_field() {}                       /* Required with gcc 2.95 */
  Field *get_tmp_table_field()  { return result_field; }
  Field *tmp_table_field(Table *)
                                { return result_field; }
  table_map used_tables() const { return 1; }
  virtual void fix_length_and_dec()=0;
  void set_result_field(Field *field) { result_field= field; }
  bool is_result_field() { return 1; }
  void save_in_result_field(bool no_conversions)
  {
    save_in_field(result_field, no_conversions);
  }
  void cleanup();
  bool check_vcol_func_processor(unsigned char *)
  { return false; }
};

#endif /* COLLAPSAR_ITEM_BIN_STRING_H */
